55430312400272 has 80 divisors (see below), whose sum is σ = 111241681795440. Its totient is φ = 26725248270336.

The previous prime is 55430312400181. The next prime is 55430312400293. The reversal of 55430312400272 is 27200421303455.

It can be written as a sum of positive squares in 8 ways, for example, as 14975166290176 + 40455146110096 = 3869776^2 + 6360436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251989528 + ... + 1252033800.

It is an arithmetic number, because the mean of its divisors is an integer number (1390521022443).

Almost surely, 2^{55430312400272} is an apocalyptic number.

It is an amenable number.

55430312400272 is an abundant number, since it is smaller than the sum of its proper divisors (55811369395168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55430312400272 is a wasteful number, since it uses less digits than its factorization.

55430312400272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47700 (or 47694 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 55430312400272 in words is "fifty-five trillion, four hundred thirty billion, three hundred twelve million, four hundred thousand, two hundred seventy-two".